Silo-door.



G. P. BRUBAKER.

SILO DOOR.

APPLICATION FILED FEB.18, x915.

Patented Jan. 11, 1916.

I w A WITNESSES ATTO R N EY arnr p nion.

GEORGE 1 BRUBAKER, 0F BERLIN,'PENNSYLVANIA.

SILO-DOOR.

To aid whom it may concern Be it known that I, GEORGE P. BRUBAKER, acitizen of the United States, residing at Berlin, in the county ofSomerset and State of Pennsylvania, have invented a new and usefulSilo-Door, of which the following is a specification.

x This invention. has reference to silo doors, and its object is toprovide a door of simple construction which may be readily set in placeand as readily removed with each door section sufliciently narrow togreatly facilitate the use of the silo.

The invention will be best understood from a consideration of thefollowing detailed description, taken in connection with theaccompanying drawings forming a part of this specification, with thefurther understanding that while the drawings show a practical form ofthe invention, the latter is not confined to any strict conformity withthe showing of the drawings, but may be changed and modified so long assuch changes and modifications mark no material departure from thesalient features of the invention.

In the drawings :Figure l is a front elevation of a portion of .a siloshowing the doors in place and one door jamb broken away to disclose aretaining bolt or rod. Fig. 2 is a section on the line 22 of Fig.1. Fig.3 is a section on the line 3-3 of Fig. 1. Fig. 4; is a section on theline 1-4 of Fig. 1.

Referring to the drawings there is shown a small portion of the walls ofa silo 1 without any attempt to show the construction of the walls, andon opposite sides of a door opening provided in the silo are uprightdoor jambs 2, 3, respectively. The janib 2 is provided with alongitudinal groove 4L and the jamb 3 is provided with a longitudinalbevel face 5 opposite the groove 4;. The groove 4 and bevel 5 arelocated on those faces of the jambs directed toward each other, and areadjacent to the inner walls of the jambs. At the bottom of the dooropening is a sill 6 and adapted to the other end of the door opening orto intermediate points, if desired, is a lintel 7, while adjacent to thelintel 7, or to each lintel 7 where more than one is employed, thedoor-opening is traversed by a rod or bolt 8 extending through the jambsand held Specification of Letters Patent.

-a rabbet 17 of a Patented Jan. 11,1916.

Application filed February 18, 1915. Serial No. 9,115.

in place by nuts 9. This bolt is removed after the silo is erected andthe doors are put in place.

Adapted to the door opening are doors 10 each having at one end a rabbetproducing a tongue 11 adapted to the groove 4, while the other end ofthe door is beveled, as shown at '12, in conformity with the bevel 5 ofthe jamb 3. That end of the bevel 5 remote from the interior of the siloand corresponding to about half the thickness of the ja1nb 3 terminatesin a shoulder 13 against which the corresponding portion of the beveledend 12 of each door section may abut. The door sections are allrelatively narrow and at the top and bottom edges these doors are formedwith rabbets producing tongues 14 and 15, respectively, located onrespectively opposite sides of the top and bottom edges.

For the topmost portion of the door opening there is provided a doorsection 10 corresponding to the door sections 10, eX- cept that it isprovided with top and bottom tongues 14? and 15 on the same side of therespective top and bottom edges of the door section. For the tongue 15of the lowermost door section the sill 6 has on its lnner face a rabbet16 of a size to receive the tongue 15 and for the tongue 14 of the doorsection 1O the lintel 7 is provided with size to receive said tongue 14Adjacent to the bevel edge 12 of each door section said section istraversed by a bolt 18 having its threaded end extending beyond the faceof the door which in use constitutes the outer face. Applied to thethreaded end of the bolts is a wing nut 19. Each bolt 18 also traversesan elongated slot 20 arranged longitudinally of a latch plate 21 havingone end 22 bent at an angle to the length of the latch plate andterminating in a nose 23 bent at an angle to the end 22- and in oil"-set substantially parallel relation to the body of the plate 21. Theangle end is of sufficient length to offset the nose 23 from the body ofthe plate a distance suflicient to perinit the nose 23 to engage theouter face of the jamb 3 with the plate 21 close to the door 10 or 10,as the case mav be. Then on tightening the nut 19 the plate 21 and door10 or 10 are forced one toward the other with the nose 23 engaging theouter face of the ..jamb 2 as a pivot. 19 may be loosened and then thedoor may the slot 20 permits the plate to be moved' lengthwise of thebolt 18 a suflicient distance tocause the nose 23 to be out of engagingrelation to the jamb 3, whereupon the door section may be swung into thesilo about the Instead of thisthe nut be lifted provided there be spaceenough above the door for the purpose.

The tongues 14 and 15 of the meeting edges of two doors interengage ina'manner to produce a tight joint because of the tortuous path producedby the overlapping of i the two tongues.

Each door sect1on is quite narrow with respect to its length, wherebythe removal of the contents of the silo is greatly facilitated.

By making the door sections narrow the liability of warping or looseningdue to air conditlons or chmatic changes is reduced to ,a minimum. Thellntel 7 1s or may be as wlde as the jambs 2, 3, and has at one end atongue 7 adapted to the groove 4. The other end of the lintel is formedwith reverse bevels 7 and 7 entering said end of the lintel anddisplaced to produce a shoulder 7 The bevels 7 and 7 and the shoulder 7d conform to the bevel 5, another bevel-5 and the shoulder 13 of thejamb 3. The lintel, therefore, is slidable lengthwise of the dooropeningand compensates for any expansion or contraction of the doors due to theeffect of climatic or other changes or conditions.

The simplicity of construction of the doors greatly reduces the cost ofsilos to the users.

eled faces of the jambs, and a door consisting of a plurality ofsections between the sill and lintel, but of less thickness, eachsection having its end edges shaped to en- I gage the grooved andbeveled inner faces of the jambs and having a top and a bottom rabbetproviding a top and. bottom tongue, the tongues of the door sectionsentering corresponding rabbets of the door sections and of the sill andlintel, and a fastening device for each door section located at thebeveled end of the door, the fastening devices and the tongues andrabbets coacting to cause each higher door section to prevent theremoval of any lower door sect1on.

In testimony, thatI claim the foregoing as my own, I have hereto affixedmy signature in the presence of two witnesses.

GEORGE P. BRUBAKER. Witnesses V Z. T. KIMMEL, J. WV. GARDLLL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. C. V

